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Fluval U1 Underwater Internal Filter 250L/H – Aquarium up to 55L


Complete and efficient 3-stage filtration, including BioMax biological filtering, to create superior aquarium water quality.


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Fluval U1 Underwater Internal Filter 250L/H

Fluval U1 Underwater Filter provides efficient filtration to create superior aquarium water quality.

It has a convenient flip-top lid that allows quick and easy access to the filter cartridge for maintenance or replacement. In addition, the filter can be installed vertically against the aquarium wall to create currents or customized flow patterns; or it can be placed horizontally in shallow water tanks; or it can be used to create decorative features such as waterfalls.

The U1 Filter can be used as a primary filter in smaller aquariums or as a supplementary filter for larger aquariums. It is also ideal for tanks with low water levels. It includes an adjustable flow control and comes complete with 1 foam pad.

  • Ideal for application in fresh, marine and reptile environments
  • Also ideal for tanks with low water levels
  • Installation and maintenance is quick, easy and convenient.
  • Adjustable flow rate
  • Made in Italy

The U1 Filter comes equipped with the following Filter cartridge:

  • 1 x foam pad (Item # A485)
Code Model For Aquariums up to Max Flow Rate Wattage Voltage Dimensions (LxWxH)
A465 U1 55L 250L/H 4.5W 240V/50Hz 6 x 9 x 15 cm
A470 U2 45 – 110L 400L/H 5W 240V/50Hz 8 x 9.5 x 20.5 cm
A475 U3 90 – 150L 600L/H 6W 240V/50Hz 8 x 9.5 x 27 cm
A480 U4 130 – 240L 1000L/H 10W 240V/50Hz 9 x 10 x 32 cm

Additional information

Weight 1 kg
Dimensions 22 × 14 × 10 cm

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